L-INX User Manual
66
LOYTEC
Version 4.0
LOYTEC electronics GmbH
Foreign Device
(FD): In this mode, the device registers at an existing BBMD in the
BACnet/IP network as a foreign device. It is used, if the device is located as a single
BACnet/IP device on a remote IP subnet or behind a NAT router. If operated as a
foreign device behind a NAT router, port forwarding to the BACnet/IP port (UDP,
default port 0xBAC0) and optionally to the Web server and FTP server port (TCP,
default port 80 and 21) must be setup in the NAT router. If foreign device is selected,
the following, additional settings must be made:
o
FD BBMD IP address
and
FD BBMD port
: IP address and port of the
remote BBMD the device registers at as a foreign device.
o
FD re-registration
: A foreign device must periodically re-register at a
BBMD. Here you can setup the corresponding interval. The default is 1800
seconds.
o
FD retry timeout
and
FD retries
: Here you can specify the behavior, if
registration does not work instantly. These values should be left at default:
30000ms / 3 retries.
Broadcast Management Device
(BBMD): This option is available on the LINX-201
only. Same as ‗Device‘ but the BBMD function is enabled (see Section 4.2.14). For
BBMD-only function, MS/TP can also be disabled (see Section 4.2.13).
4.2.13 MS/TP Configuration
The BACnet MS/TP protocol can be enabled on the device‘s port Port2 if available. To
enable it, click the
BACnet MS/TP
radio button as shown in Figure 52. Note, that
depending on the device model, other protocols on the same port will be disabled in this
case. On a BACnet L-INX without a BACnet router BACnet MS/TP port is not enabled by
default. On a BACnet L-INX with a BACnet router the MS/TP port is enabled by default.
Figure 52: MS/TP Configuration.
The MS/TP protocol settings are displayed in the settings box on the right-hand side as
shown in Figure 52. Mandatory settings are the
MS/TP node number
and the
MS/TP
baud rate.
The MS/TP node number determines the physical address of the device on the
MS/TP channel and must be in the range from ‗0‘ to the number configured with the
MS/TP max master
configuration option. It must be unique within the MS/TP channel.
The Baud rate on the MS/TP channel can be set to 9600, 19200, 38400, and 76800 Baud. It
is strongly recommended to leave the
MS/TP max info frames
and the
MS/TP max
master
configuration options at their default settings.
On a L-INX with a BACnet router, the
Network Number
of the MS/TP port must be
configured to operate the build-in router. On the LINX-201 the MS/TP port can be disabled
independently of the BACnet/IP port.
4.2.14 BACnet BDT (Broadcast Distribution Table)
The BBMD function is only available on L-INX models with the BACnet router option
(151, 201, 211, 221). The BBMD function is needed when a BACnet/IP network spans over
several IP subnets separated by IP routers. If the device is configured as a BBMD, i.e. the
